When comparing Quantum Fiber and Google Fiber, check your address first, then compare the plans you can actually order. Google Fiber, which now markets itself as gFiber, advertises matching upload and download speeds on its 1 Gig, 3 Gig and 8 Gig plans. Quantum Fiber, now sold as Quantum Fiber from AT&T after Lumen completed the sale of the business on February 2, 2026, advertises equal upload and download speeds on every plan except 2 Gig. Both include unlimited data with no annual contract, so the real differences are the plan, the equipment and the installation at your home.
Sources: gFiber, Internet plans page, read Oct 3, 2026; gFiber, FAQ, read Oct 3, 2026; Quantum Fiber, Home page, read Oct 3, 2026; Lumen Technologies, news release (SEC 8-K), Feb 2, 2026
Short answer: Both are fiber to the home, so take whichever one is actually built on your block
Google Fiber and Quantum Fiber both run fiber all the way to the house where they have built, so upload matches download on either network and neither has a structural advantage in how the line behaves under load. What is left are secondary differences: which tiers each sells at that address, how the install goes, and how support is handled. Their footprints barely overlap in practice. Google Fiber is a deliberate metro-by-metro build in a handful of cities and suburbs, while Quantum Fiber is the fiber conversion of a much older CenturyLink telephone territory spread across many states. At most addresses exactly one of the two can be ordered, and that settles the question before preference gets a say.
- Google Fiber is fiber to the home, operated by Google LLC. Quantum Fiber is fiber to the home, operated by Lumen Technologies, Inc..
- Google Fiber: plans commonly range from 1 Gbps up to 8 Gbps where available.
- Quantum Fiber: plans commonly range from 500 Mbps up to 8 Gbps where available.
- Both operate in 3 of the markets FiberNear tracks, so this is a real choice rather than a hypothetical one in those cities.
- Both are built out address by address. Whichever reaches your specific property usually settles the question before preference does — FiberNear checks that free.
Google Fiber vs Quantum Fiber, side by side
| Google Fiber | Quantum Fiber | |
|---|---|---|
| Connection type | Fiber to the home | Fiber to the home |
| How it reaches you | Fiber-to-the-home | Fiber-to-the-home |
| Speeds | Plans commonly range from 1 Gbps up to 8 Gbps where available | Plans commonly range from 500 Mbps up to 8 Gbps where available |
| Where it runs | A select but growing list of metros across the South, Mountain West, and Midwest | A wide western and midwestern footprint inherited from CenturyLink |
| Known for | Simple plans, no contracts, and some of the highest residential tiers available | Flat, all-in monthly pricing with no contracts on fiber plans |
| Operated by | Google LLC | Lumen Technologies, Inc. |
Speeds and footprints are advertised by each provider, vary by address, and change without notice. FiberNear does not set or guarantee them.
Gigabit fiber and multi-gig speed tiers: Google Fiber vs Quantum Fiber side by side
Both networks publish tiered plans, and the tier class matters as much as the top-line speed. Here is what each side offers as a tier, based on the plans each provider currently advertises.
- Google Fiber offers multi-gig fiber, up to 8 Gbps advertised where available.
- Quantum Fiber offers multi-gig fiber, up to 8 Gbps advertised where available.
- Because both are fiber networks, upload matches download at every tier, and the multi-gig plans behave the same on latency as the base gigabit fiber tier.
- Tier availability varies by address. A multi-gig plan advertised in a market is not offered at every address inside that market, since it depends on whether the local optical distribution supports it.
Tier classes are derived from each provider's own advertised plans and change without notice. FiberNear does not set or guarantee speeds.
What equipment and installation does each provider include?
Google Fiber includes a Wi-Fi 6E router with its 1 Gig plan and a Wi-Fi 7 router with its 3 Gig and 8 Gig plans, and it says equipment is included with the plan. It offers professional installation or self setup, and homes that had Google Fiber before, even under a previous occupant, may qualify for self-installation. You can also connect your own router to the Ethernet port on the Fiber Jack.
Quantum Fiber includes its 360 WiFi at no added cost under its current offer, and the installing technician decides how many WiFi pods you get. Technician installation is included at eligible locations. Some new installations need construction work first, so ask whether yours does before you schedule.
- Ask which router or WiFi pods your order includes.
- Ask whether your property needs construction before installation.
- Decide where the equipment should go before the technician arrives.
A fast plan also needs capable hardware. Quantum Fiber says that to get the full speed of its 1, 3 or 8 Gbps plans, offered in select areas, you need a wired connection with a CAT6 or CAT6a Ethernet cable and a network interface card that supports that speed. Check your computer before you pay for a higher tier.
Sources: gFiber, Internet plans page, read Oct 3, 2026; gFiber, FAQ, read Oct 3, 2026; Quantum Fiber, Internet plans and offer details, read Oct 3, 2026; Quantum Fiber Support, Maximizing multi-gig speeds, read Oct 3, 2026
Where Google Fiber and Quantum Fiber overlap
These are the markets FiberNear tracks where both networks operate, so the comparison is a real decision rather than a hypothetical. The percentage is the share of each city's residential locations reached by fiber of any brand, from FCC filings — it describes the market, not either company's own footprint.
| Market | Fiber available | Cable available |
|---|---|---|
| Denver, CO | 64.2% | 93.3% |
| Phoenix, AZ | 27.1% | 73.7% |
| Salt Lake City, UT | 79.6% | 97.5% |
Source: FCC Broadband Data Collection, residential fixed broadband, as of December 31, 2025. Figures are advertised availability self-reported by providers, not measured speeds. Which providers operate in each market is FiberNear's own editorial assessment, not an FCC figure.
How often each one is actually available
Specifications decide which connection is better. Availability decides which one you can buy, and it is the part comparison pages usually skip. Across the 29 markets FiberNear holds FCC data for, this is how much of each city the two technologies reach at 100/20 Mbps or better:
- Google Fiber is fiber, and fiber reaches a median of 64.2% of locations in a typical tracked market.
- Quantum Fiber is fiber, and fiber reaches a median of 64.2%.
- Both run on the same kind of network, so availability does not separate them at the market level. It separates them street by street, which is the only level that matters here.
Source: FCC Broadband Data Collection, residential fixed broadband, as of December 31, 2025. Figures are advertised availability self-reported by providers, not measured speeds. These are technology-level figures, not brand-level ones — the FCC's public summary files report how much fiber or cable reaches a city, but not which brand owns it, so no coverage percentage here should be read as a figure for Google Fiber or Quantum Fiber specifically.
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